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C-800 ADU exterior in light colorway
C-800 ADU exterior in dark colorway
C-800 floor plan
Exterior:

C-Series · Single-Level

Model C-800 · Single-Level

About This Model

The C-800 is a single-level 2-bed, 2-bath. The C-800 commands the highest rents of any model in the BTH lineup because it solves the one friction point in 2-bedroom rentals: the shared bathroom. In Madison’s rental market, a 2-bed/2-bath unit at 800 square feet with a private entrance is genuinely scarce. Most apartments at this size are in multi-unit buildings with shared hallways and no private outdoor access. The C-800 ADU competes directly against apartment units costing $2,000+/month and wins on privacy and character. Note: at 800 square feet, this model sits at or near the ADU size cap in some Dane County municipalities. Confirm eligibility at your address.

Ideal For

Two unrelated tenants sharing the space, parent-and-adult-child occupancy, premium STR configuration.

Interior Photo
C-800 interior

Representative interior photo. Finishes and layout vary by model and project configuration.

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Floor Plan / Elevation — C-800
Floor Plan
C-800 floor plan
Virtual Tour

Explore the C-800 in 3D before your project begins. Walk through the layout, check sight lines, and get a feel for the space.

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Facade Upgrade Options
Option A
C-800 facade upgrade option A
Option B
C-800 facade upgrade option B

Facade upgrade options available. Ask about exterior cladding, window configurations, and color packages during your consultation.

Premium Finishes & Features

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Full Turnkey Construction & Residential Finishes
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Design and Plans Included
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Luxury Vinyl Flooring
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Quartz Countertops
✓
House Match Options Available
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Mini Split Heating and Air System
✓
Open Concept Kitchen
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Custom Built at Your Property
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Full Bathroom
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Lifetime Composition Shingle Roof
✓
Slow Close Cabinets and Drawers
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Appliance Packages Available

Frequently Asked Questions

Where can I place this ADU?+
The C-800 can be placed on most single-family and two-family residential lots in Dane County, subject to setback, size, and zoning requirements for your municipality. We confirm feasibility at your address during the free feasibility check.
What can I customize?+
Exterior siding color and material, roofing color, interior paint, cabinet hardware, light fixtures, and appliance packages. The structural layout is fixed per model; finish-level personalization is fully available.
What features come standard?+
Every Boundless ADU includes full permitting, architectural plans, mini-split HVAC, quartz countertops, luxury vinyl flooring, slow-close cabinetry, and a lifetime composition shingle roof. Appliance packages are available and are not assumed in the base price.
What financing options are available?+
Common paths include HELOCs, cash-out refinancing, construction-to-permanent loans, and ADU-specific products. See our financing page or try the ADU calculator.
Other Models

Every C-Series plan is a starting point on your lot. Compare the rest of this series, or view all models.

C-693 ADU exterior in dark colorway
C-693
2 Bed · 1 Bath · 693 sqft
C-775 ADU exterior in dark colorway
C-775
2 Bed · 1 Bath · 775 sqft
C-875 ADU exterior in dark colorway
C-875
2 Bed · 1 Bath · 875 sqft
C-936 ADU exterior in dark colorway
C-936
2 Bed · 1 Bath · 936 sqft
C-800
C-Series · Single-Level
2Bed
2Bath
800sqft
ADU Overview
Single-level. 800 sqft. 2 bedrooms, 2 bathrooms. Our only dual-bath model. Genuine independence for two occupants.
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608-400-0121 VIEW ALL MODELS